Cake holder



942. H. J. MCDERMOTT CAKE HOLDER Filed July 2, 1940 2 Sheets-Sheet lINVENTOR Awm JM flaw/a ATTO y 1942- H. J/MCDERMOTT CAKE HOLDERFiled.July 2, 1940 2. Sheet-Sheet 2 ATTO Patented May 12, 1942 UNITEDSTATES eATENT OFFiCE CAKE HOLDER Henry McDermott, Prospect Park, Pa.,assignor to American Viscose Corporation, Wilmington, Del., acorporation of Delaware Application July 2, 1940, Serial No. 343,538

2 Claims.

This invention relates to improvements in apparatus for supporting andunwinding a yarn package or the like.

In the manufacture and finishing of various types of yarn, it is oftendesirable to subject the yarn to a liquid treatment while in packageform. For instance, in one method of manufacture of rayon by theviscoseprocess, the rayon is collected in a spinning box in an annular for-vmation, which is called a cake. The rayo'ncake is subjected to variousliquid treatments, such as washing; desulphurizing and bleaching. Also,it is often desirable tosubject finished rayon or other yarn in packageform to liquid treatment such as dyeing. After the liquid treatment theyarn is generally unwound from the package and formed into skeins orwound on bobbins or cones. The liquid treatment of the yarn packagetends to disarrange and tangle the yarn which makes the unwindingoperation difllcult.

The principal object of this invention is to provide an improved meansfor supporting and unwinding a yarn package or the like that has beensubjected to a liquid treatment.

Other objects and advantages of the'invention will be apparent from thefollowing description and accompanying drawings in which a preferredembodiment of the invention is shown.

In the drawings:

Figure l is a view of an embodiment of the invention applied to awinding machine.

Figure '2 is a vertical sectional viewof the embodiment of the inventionin Figure 1.

Figure 3-is a view of the-embodiment of the invention in Figure -1 shownwith parts broken away.

While the invention isshown and described as applied to a windingmachine it is to be understood that it may be used withany other type ofmachine where yarn isunwound from a package.

In the drawings, reference character i indicates yarn being withdrawnfrom the package 2 mounted on the package supporting means generallyindicated by reference character 3. The yarn is directed to the driventake-up bobbin 4 by the guide means 5 carried by the traverse rail 6.The package supporting means comprises the hollow shaft 1 on which aremounted the flange or base 9, the rotatable flange l0, and the packagegripping means H. The shaft is supported on the frame member 8. Theposition of the flange 9 may be adjusted along the shaft by means of theclamping member l2. The rotatable flange is journaled on the shaft andis engaging means H are loops of spring steel or other resilientmaterial fixed to the head [3 which is secured to the shaft. Theposition of the head may also be adjusted along the shaft. In order toreduce the tension on the yarn the rotatable flange may be rotated. Themeans for rotating the flange comprises the drive shaft M extendingthrough'the'hollow shaft and having a head portion 15 which frictionallyengages the member IS on the rotatable flange. The drive shaft [4 isrotated by an air motor or other means which is not shown.

In placing a yarn package on the package supporting means the rotatableflange is first removed. The yarn package, into which has been inserted'a celluloid collar 68 or other andrawn inwardly and downwardly over thereinforcing means inside the package. The rotatable flange is thenreplaced on the shaft and the yarn is withdrawn from the package overits edge.

While a preferred embodiment of the invention has been shown it is to beunderstood that changes and variations may be made without departingfrom the spirit and scope of the invention as defined by theappendedclaims.

What I claim is:

1. Means for supporting and unwinding a yarn package comprising a shaft,a yarn package supporting base mounted on the shaft, a hub mounted onthe shaft and spaced from the base, yarn package retaining meanscomprising loops of spring material attached to the hub and adapted toengage a yarn package supported on the base, and a member mounted on theshaft over the edge of which yarn may be withdrawn from a yarn packagesupported on the base.

2. Means forsupporting and unwinding a yarn package comprising a shaft,9. yarn package supporting base mounted on the shaft, a hub mounted onthe shaft and spaced from the base, said hub being adjustable along theshaft, yarn package retaining means comprising loops of spring materialattached to the hub and adapted to engage a yarn package supported onthe base; and

a member mounted on the shaft over the edge of which yarn may bewithdrawn HENRY J. MCDERMOTT.

